Tailoring structure imperfection in ZnTe bulk crystals and improving the terahertz response

Yadong Xu, Jiangpeng Dong, Bao Xiao, Bin Bin Zhang, Christian Teichert, Wanqi Jie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High singularity ZnTe based ingots in dimension of 60 mm are grown in this work by temperature gradient solvent method under Te-rich condition. V or Mn dopants are adopted to compensate the grown-in Zn vacancies and tailor the crystals photo-electric properties. THz response measurements using femtosecond Ti:sapphire laser indicate the generation and detection efficiency are enhanced compared to the intrinsic ZnTe. To further optimizing the THz spectroscopy and imaging applications, the size and distribution of macro scale imperfections have been investigated in ZnTe crystals. Simultaneously, the post growth processing including surface modification and wafer annealing were performed on ZnTe crystal.

Original languageEnglish
Title of host publicationInternational Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2018
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9780960038084
StatePublished - 23 Apr 2018
Event9th International Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2018 - Changsha, Hunan, China
Duration: 23 Apr 201826 Apr 2018

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

Conference9th International Symposium on Ultrafast Phenomena and Terahertz Waves, ISUPTW 2018
Country/TerritoryChina
CityChangsha, Hunan
Period23/04/1826/04/18

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